Nickel-Strunz Classification
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Nickel%E2%80%93Strunz Classification

Nickel-Strunz classification is a scheme for categorizing minerals based upon their chemical composition, introduced by German mineralogist Karl Hugo Strunz (24 February 1910 - 19 April 2006) in his Mineralogische Tabellen (1941).[1] The 4th and the 5th edition was also edited by Christel Tennyson (1966). It was followed by A.S. Povarennykh with a modified classification (1966 in Russian, 1972 in English).

As curator of the Mineralogical Museum of Friedrich-Wilhelms-Universität (now known as the Humboldt University of Berlin), Strunz had been tasked with sorting the museum's geological collection according to crystal-chemical properties.[1] His book Mineralogical Tables, has been through a number of modifications; the most recent edition, published in 2001, is the ninth (Mineralogical Tables by Hugo Strunz and Ernest H. Nickel (31 August 1925 - 18 July 2009)).[2][3] James A. Ferraiolo was responsible for it at[4] The IMA/CNMNC supports the Nickel-Strunz database.[5]

Nickel-Strunz code scheme

The Nickel-Strunz code scheme is NN.XY.##x, where:

  • NN: Nickel-Strunz mineral class number
  • X: Nickel-Strunz mineral division letter
  • Y: Nickel-Strunz mineral family letter
  • ##x: Nickel-Strunz mineral/group number; x an add-on letter

Nickel-Strunz mineral classes

The current scheme divides minerals into ten classes, which are further divided into divisions, families and groups according to chemical composition and crystal structure.[4]

  1. elements
  2. sulfides and sulfosalts
  3. halides
  4. oxides, hydroxides and arsenites
  5. carbonates and nitrates
  6. borates
  7. sulfates, chromates, molybdates and tungstates
  8. phosphates, arsenates and vanadates
  9. silicates
  10. organic compounds

IMA/CNMNC mineral classes

IMA/CNMNC proposes a new hierarchical scheme (Mills et al. 2009), using the Nickel-Strunz classes (10 ed) this gives:

See also


  1. ^ a b Knobloch, Eberhard (2003). The shoulders on which We stand/Wegbereiter der Wissenschaft (in German and English). Springer. pp. 170-173. ISBN 3-540-20557-8.
  2. ^ Mills et al. 2009.
  3. ^ Allan Pring and William D. Birch (October 2009). "Obituary: Ernest Henry Nickel 1925-2009". Mineralogical Magazine. 73 (5): 891-892. doi:10.1017/S0026461X00032965 (inactive 31 May 2021).CS1 maint: DOI inactive as of May 2021 (link)
  4. ^ a b Strunz Classification
  5. ^ Ernest H. Nickel and Monte C. Nichols (22 May 2008). "IMA/CNMNC List of Mineral Name based on the database MINERAL, which Materials Data, Inc. (MDI) makes available" (PDF). Archived from the original (PDF) on 20 March 2009. Retrieved 2011.


External links

  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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